Fuse-setting device for projectiles



Oct. 16, 1928'; 1.681544 A. 'r. DAWSONFFAL FUSE SETTING DEVICE FOR PROJECTILES Filed July 26, 1927 2 Sheets-Sheet I Oct. 16, 1928.

. 1,687,644 A. T. DAWSON ET AL FUSE SETTING DEVICE FOR PROJECIILES 2 Sheets-Sheet Filed July 26, 1 927 ARTHEIR mrmvon DAWSON SAND GEORGE THOM S BUCKHA or ESTMms'J R;

*BRITISHrQOMBANI;

" Application med Jfify 26, 1927, Sfial ll'd. ga ged-Jamiegee-es m igmgye n 47,19 r

This invention relates to fus e settirlligde- Vices for projectiles,- partieularly projectiles chief obj ectto provide a, device by Whieh the 6 setting of the fuse or fiises of one or'more the reception of one or more projeetiles is provided with two rotary heiigibefs adapted of th adjust l 1is' ringan m ar 15. provided 'for [angulji'ly "displaeihg one" of these members with 'respeet'to the other in v accordance with the 11553 setting i equired at any g a1"*ti'cu1au "moment; fuithef means being P ovided forv-ang aii z i placing' h. f 20 0 12. the11111312 2 of Figure "1,

1 lgui 6 the said members when iresh'prq emle is-f insert dintothe qoiitainer so'qs'to cause the said me'mbe'rs'to coo-operate yvith'theEen'g-agk ihg portions ofthe'filse body and of theadi'iS iwsec tion taken "6lsfal l enlarged 7 P 1 i v i hec n ain l eits. v

18a sec ion the) 1mm,

justablef use ringin whateveppositioh these we i 25 portions'may begahdg-thembii g' both 'the' said membersto a definitepositioh-isokthat V the'fliseis'then correctly set l'nd cah continue rately apt-hated inembe'r'is pziefe ablythe ohe that-engages with the'adj fistable ring of the fuse and the aforesaid movemeii ts of-thefiwo associated with e chother La d with th mehen ism fore-operating the said members, by meansof is difierentil gear. 1 The isfaid; sepa ratelyVactuate'd memberm y be provided with two spring ea-tg hes adapted tofengzpgei;

v one on each side of a.pin'ohphojeetion oh che' adjustable fuse Q "l ing'ja'nd "the other' member 1 may; be provided With a springljl gergdqpt In order that thefsaid invention' fmay be efieefi, the same will novv be deseribedimore drawings, in whi'e'hgef fsttuetionaI form of the inv 'el igtio ni, '7

, lhiishe'pesitl'on shown inEiguri' fiWeef edto. engage with a recess iii thefuse body.

)ijrluitiiig rela ivemvemnnhe; ;j r

fus ring so he go ipermimhe said the two eat d 5 The aidwatbhesfare fQL'niefdl -With; ther' ineli disurjface ,s. vilLb Ii e f Qd"ba Lith tll'ih Id? ,PQ i n which are connected to pinions 'C ",C The 'pinion O engages witha gear wheel D driven bythe, handle 13 (herein termed the i setting handle) for setting the adjustable equalizing handle.

fuse rings B a-nd the pinion'O? engages'with a gear WheelE operated by another handle ]:P which is herein termed the also engages Witha pinion E -on a'hollow shaft E surrounding the aforesaid'central shaft (3, the lower end of this hollow shaft being keyed to a toothed Wheel E meshing with' a second series of toothed Wheels E E which f are fmade hollow to receive the heads of the projectiles, each wheel of this, second series-having a spring plunger e? adapted to engage in a recess b? formedin the body B of theifuse. *The parts are so arranged that'by turningthe equalizing han- :I dle 15 through a complete "revolution the hollow gear WheelsC G engaging 'With' the adjustable fuse rings and thehollowgear Wheels E E -engaging with the fuse bodies are given a complete revolu'tion opposite directions so thatwhena fresh cartridge case has been inserted into its compartment (the i pin"v b' in all probability not being between thecatches C, C and the springplunger e not engaging in the recess 6?) the aforesaid brought back tothe position they previously occupied,"assuming'thatthe setting handle D has not been moved during this "short iii-j terval of time, and the fuse of the new car'- tridge'will thus have been'correctly adjusted;

A handle D has been adjusted'to a new'fusef If during the said'interval of'time the'settin'g setting the movement of-the' equalizing 1amdle E? to its original position" will, "of course;

displacethehollow gear wheels EfiiE ap-j i lfblfifllld aidifierentia'l gear jassociatedwith said devices ands'ai'd mechanisms.

pertaining to the adjustable fusefring'sjto the positiondetermine'd bythe new position of,thefsetting-handle'fD ia Itwillthusbe seen v comprising a container-"for the receptionofj that when a new cartridgehasbeen inserted into its" compartnrient, the a'ctuation 'of the I u vlow gear wheel'for receiving 'the fuse of the equalizing handle E whichfis at once effectedjserves to adj ust the time fuse of that cartridge in accordance withi'the particular .con'ditlons prevailing at. the -moment, 1 the actuation of'the setting han'dle D 21 5 37 ing .the fuse setting of all the cartridges simulta-neously 'ashthe said conditionsfchange.

The normal position of the equalizingfhandle E ;to Jwhich it must be broughtfat the end of each actuation; is determined: positively by}; suitable. means [such us spring plunger fe l carried by thesaidhandl'e forfengaging' iii a"- 'hole'a inn bracketA on theicontaiiierq; It} will be understood thatthe rotary movements The latter gear wheel of the hollow gear wheels E E 'engaging with the fuse bod es causes ;bod1lyangular.

"movements of the cartridges as these fuse bodies are rigidly attached .to the projectiles. In the example shown one revolution of the equalizing handle 'Eigives. one revolution to the hollowrg'ear' wheels C 0" and E E in opposite directions, but if desired the gearing-' may be so designed as to require more than one revolutionrof the said handle The movements of the setting handle ID are preferablyefiectedj in 'accordance with indications transmitted from a control station or apparatus andfor this purpose this handle i's' connected by gearing to'al dial D (graduated forthe fuse settings) over which fuse setting is determined and the said setting handle is constantly operated in order to cause an index marl: d? onthe dial to'folmoves a po'i'nte'r'D suitably operated from" the control station: or apparatus, where the low the movements of th'ejsaid pointer D The gearing foi iopera'ting the dial' D? coniprisles, in the example shown, a radial "shaft having at its inner end a pinion d meshingwith the aforesaid-pinion C and having. at its outer end a ipn'non d l' lifleshllig witha' ll l pinion cl on an upwardlyeXtendingjshaft D which 7 7 drives the dial D through i suitable gearing. The setting handleiDr -isheld by the fuse setting; member during the operation A of the equaliziii ghandle Efi'but if'desired a locking device could beprovided for the set- V a Q claim and desire; to secure'by V ting handle.

Letters Patent'o'f the United States is j '11; A fuse" setting devicel for' pro ectiles,

1 comprising container. for the reception of f a"projectile, 1a jmember; carried by said cas .ing and adapted to en gage' wi'th partof the V fusebody,"a member carried vby said casingv device for each o f said members, mechanism between each dev ce and ts particular mem '2. A; fuse setting device; for fprojeotiles",

'a idjadapted toje igi 'ge with part ofgthe ad j us'table portion of the fuse, 'anj actuating a projectile,"amember'inthe form of a holprojectile,- another ,member in the form "of a hollow gear wheel' for receivingthe fuse of theprojectile, coacting means between one of these members'and'the fuse body, co-act between eachfd'evic'e and its particular memher and {a diflerent al said? devices: and said mec h anismsl V 3; A fuseflsetting fdevicejifor projectiles,

comprising container for the reception of a ro'ectile amember carried b" said casin i. 7 r u V A c7 a spring plunger on said member adapted to engage with a recess in the fuse body, a sec-,

ond member carried by said casing, spring catches on said second member, said catches being adapted to engage one on each side with a projection on the adjustable ring-of the fuse, an actuating device for each of said members, mechanism between each devl'ceand its particular member and a differential gear associated with said devices and said mechanisms. I

a :4. A fuse setting device for projectiles,

comprising a container for the reception of the projectile, a member carried by said casing and adapted to engage with part of the fuse body, a membercarried by said casing and adapted to engage with -partiof the adjustable portion of the fuse, an indicator operated from a control station andgiving the fuse settings, said indicator forming part of the fuse setting device, means for anguf-f larly displacing one ofthe said members in accordance with the indicationsof saidindi-' cator, and means for' angularly displacing both of the said members When'a fresh pro jectile is inserted into the container so as Ito position these parts may be and then bring both thesaidmembers to a definite'position:

actuated member.

"so that thefuse is then correctly set and can f continue to bemaintained; correctly set by Y the continued displacement of the "separately 5. A fuse setting device for projectiles,

comprising a'containerhaving a plurality of compartments each receiving a projectile,

amembercOntiguOus to each compartment, fOrengagingWith part of: the fuse body of the projectile in that compartment, a sec-1 0nd memberconti'guous to eachcompartment 7 7 for engaging with part ofv'the adjustable portionof'the fuse" of the projectile'in that H A5 a group of said meinbers,inechanismbetween compartment, 7 an actuating, device for each each device and its particular group of meme bers and a differential gear associated said devices and said mechanisms. 7

as 1 a 1 ARTHUR TREvoRinAW' I GEORGE THOMAS-BUCKHAM} f1 

